## Saxon.Api

Class DocumentBuilder

Class DomDestination

Class DynamicContext

Class DynamicError

Class EmptyEnumerator

Class ExtensionFunctionCall

Class ExtensionFunctionDefinition

Class NullDestination

Class Processor

Class QName

Class SchemaManager

Class SchemaValidator

Class Serializer

Class StaticContext

Class StaticError

Class TextWriterDestination

Class XPathCompiler

Class XPathExecutable

Class XPathSelector

Class XQueryCompiler

Class XQueryEvaluator

Class XQueryExecutable

Class XdmAnyFunctionType

Class XdmAnyItemType

Class XdmAnyNodeType

Class XdmAtomicType

Class XdmAtomicValue

Class XdmDestination

Class XdmEmptySequence

Class XdmFunctionItem

Class XdmItem

Class XdmItemType

Class XdmNode

Class XdmNodeKind

Class XdmSequenceType

Class XdmValue

Class XmlDestination

Class XsltCompiler

Class XsltExecutable

Class XsltTransformer

Enum RecoveryPolicy

Enum SchemaValidationMode

Enum TreeModel

Enum WhitespacePolicy

Enum XdmAxis

Interface IMessageListener

Interface IQueryResolver

Interface IResultDocumentHandler

Interface IXdmEnumerator

Interface IXmlLocation

Interface SchemaResolver

## Saxon.Api
Class XdmItem

    public abstract class XdmItem

extends XdmValue

  The class `XdmItem` represents an item in a sequence, as defined by the XDM data model. An item is either an atomic value or a node.

  An item is a member of a sequence, but it can also be considered as a sequence (of length one) in its own right. `XdmItem` is a subtype of `XdmValue` because every Item in the XDM data model is also a value.

  It cannot be assumed that every sequence of length one will be represented by an `XdmItem`. It is quite possible for an `XdmValue` that is not an `XdmItem` to hold a singleton sequence.

Method Summary
`bool` | `IsAtomic()` Determine whether the item is an atomic value

Method Detail

### IsAtomic

    public abstract bool IsAtomic()

  Determine whether the item is an atomic value

  returns
    true if the item is an atomic value, false if it is a Node